From cc90c6742ef5b438f4cb86029d7a794bd0a44a06 Mon Sep 17 00:00:00 2001 From: Kajol Jain Date: Wed, 18 Aug 2021 22:45:55 +0530 Subject: [PATCH] powerpc/perf: Drop the case of returning 0 as instruction pointer Drop the case of returning 0 as instruction pointer since kernel never executes at 0 and userspace almost never does either. Fixes: e6878835ac47 ("powerpc/perf: Sample only if SIAR-Valid bit is set in P7+") Signed-off-by: Kajol Jain Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20210818171556.36912-2-kjain@linux.ibm.com --- arch/powerpc/perf/core-book3s.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/arch/powerpc/perf/core-book3s.c b/arch/powerpc/perf/core-book3s.c index 3a782a3..9bb466d 100644 --- a/arch/powerpc/perf/core-book3s.c +++ b/arch/powerpc/perf/core-book3s.c @@ -2270,8 +2270,6 @@ unsigned long perf_instruction_pointer(struct pt_regs *regs) return regs->nip; } else if (use_siar && siar_valid(regs)) return siar + perf_ip_adjust(regs); - else if (use_siar) - return 0; // no valid instruction pointer else return regs->nip; } -- 2.7.4